Finding the Fourth Proportional to 457,863.80, 686,795.70 and 434,535.80
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Solution
The fourth proportional to 457,863.80, 686,795.70 and 434,535.80 is: 651,803.70
Step by Step Solution
- Step 1: Write the proportion equation
457,863.80 : 686,795.70 = 434,535.80 : x - Step 2: Convert to fraction form
457,863.80/686,795.70 = 434,535.80/x - Step 3: Cross multiply
457,863.80x = 686,795.70 × 434,535.80 - Step 4: Simplify right side
457,863.80x = 298,437,318,936.06 - Step 5: Solve for x
x = 298,437,318,936.06/457,863.80 - Step 6: Final answer
x = 651,803.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.